The Sam White Bridge

Pictured above in 2011, the Sam White Bridge was the longest two-span bridge ever moved in the Western Hemisphere. The 354-foot structure was built using Accelerated Bridge Construction (ABC) on the side of the freeway. Both spans were moved into place simultaneously in one evening using two sets of self-propelled modular transporters (SPMT).

The Sam White Bridge, which crosses I-15 in American Fork, Utah, was one of 63 bridges either modified or replaced as part of the Utah Department of Transportation’s 24-mile, $1.72 billion Interstate 15 corridor expansion project.